Answer:
<u>During the interval from 0.75 to 1 hour. the distance runner ran at an average speed of 5 miles per hour. The correct answer is B.</u>
Step-by-step explanation:
1. Let's review the information given to us to answer the question correctly:
Time Elapsed (Hours) 0.50 0.75 1.00
Miles Traveled (Miles) 2.00 3.50 4.75
2. What is her average speed, in miles per hour, during the interval 0.75 to 1.00 hours?
For calculating the average speed of the distance runner during the race, we will use the following formula:
Average Speed = Miles Traveled/Time Elapsed
Average Speed 1st Interval = 2/0.5 = 4 miles per hour
Average Speed 2nd Interval = (3.5 - 2)/(0.75 - 0.5) = 1.5/0.25 = 6 miles per hour
Average Speed 3rd Interval = (4.75 - 3.5)/(1 - 0.75) = 1.25/0.25) = <u>5 miles per hour </u>
<u>During the interval from 0.75 to 1 hour. the distance runner ran at an average speed of 5 miles per hour. The correct answer is B.</u>
